The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 18 March 2026 06:54 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	45899	7802949	22.22%	3346	2332.02	VNPT-AS-VN VNPT Corp, VN
2	9198	3055102	8.70%	1082	2823.57	KAZTELECOM-AS, KZ
3	4538	2375116	6.76%	5070	468.46	ERX-CERNET-BKB China Education and Research Network Center, CN
4	135905	953612	2.72%	332	2872.33	VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP, VN
5	4670	574890	1.64%	357	1610.34	HYUNDAI-KR Shinbiro, KR
6	16509	447063	1.27%	14657	30.50	AMAZON-02 - Amazon.com, Inc., US
7	51375	430946	1.23%	387	1113.56	VIVA, BH
8	23764	373430	1.06%	176	2121.76	CTGNET CTGNet, HK
9	9952	328336	0.93%	174	1886.99	HOSTWAY-AS-KR Hostway IDC, KR
10	328608	322190	0.92%	570	565.25	Africa-on-Cloud-AS, ZA
11	8151	317695	0.90%	12872	24.68	UNINET, MX
12	9848	243079	0.69%	147	1653.60	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
13	7552	165830	0.47%	4094	40.51	VIETEL-AS-AP Viettel Group, VN
14	9808	148556	0.42%	13844	10.73	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
15	10620	129437	0.37%	3454	37.47	Telmex Colombia S.A., CO
16	7643	119420	0.34%	80	1492.75	VNPT-AS-VN Vietnam Posts and Telecommunications VNPT, VN
17	36903	105770	0.30%	1232	85.85	MT-MPLS, MA
18	131866	101798	0.29%	62	1641.90	DEK-AS-KR Digital Edge Korea, KR
19	24085	99520	0.28%	106	938.87	QTSC-AS-VN Quang Trung Software City Development Company, VN
20	18046	88690	0.25%	132	671.89	DONGFONG-TW DongFong Technology Co. Ltd., TW
21	7713	79674	0.23%	3700	21.53	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
22	58224	76843	0.22%	1300	59.11	TCI, IR
23	7821	71612	0.20%	17	4212.47	ZAYO-MN - Inteliquent, inc., US
24	9980	68954	0.20%	62	1112.16	LDCC-AS-KR LOTTE INNOVATE Co.,Ltd, KR
25	63737	66587	0.19%	44	1513.34	VIETSERVER-AS-VN VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED, VN
26	39891	60058	0.17%	4969	12.09	ALJAWWALSTC-AS, SA
27	212238	59133	0.17%	2681	22.06	CDNEXT, GB
28	20473	58037	0.17%	1711	33.92	AS-VULTR - The Constant Company, LLC, US
29	17561	56039	0.16%	3151	17.78	LCS-AS-AP LARUS Limited, HK
30	335	55876	0.16%	226	247.24	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
31	10049	54216	0.15%	28	1936.29	SKNET-AS SK Co., KR
32	9942	52791	0.15%	42	1256.93	COMINDICO-AP SOUL Converged Communications Australia, AU
33	367	51355	0.15%	1786	28.75	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
34	36968	49773	0.14%	65	765.74	ECN-AS1, ZA
35	12389	48994	0.14%	3206	15.28	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
36	12479	48186	0.14%	7306	6.60	UNI2-AS, ES
37	29256	47909	0.14%	350	136.88	INT-PDN-STE-AS STE PDN Internal AS, SY
38	36902	47504	0.14%	41	1158.63	ASINTELVISION, SC
39	18403	46596	0.13%	4731	9.85	FPT-AS-AP FPT Telecom Company, VN
40	54994	46270	0.13%	997	46.41	ML-1432-54994 - Meteverse Limited., CA
41	63747	46179	0.13%	16	2886.19	CPT-AS-VN Central Post and Telecommunication CPT, VN
42	140292	45958	0.13%	2488	18.47	CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CHINATELECOM Jiangsu province Suzhou 5G network, CN
43	45498	45602	0.13%	26	1753.92	SMART-AXIATA-KH SMART AXIATA Co., Ltd., KH
44	136167	43970	0.13%	13	3382.31	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
45	45374	43568	0.12%	41	1062.63	CCS-AS-KR CCS, KR
46	45090	43488	0.12%	2190	19.86	TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN
47	647	43298	0.12%	512	84.57	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
48	64079	42375	0.12%	17	2492.65	CTGL-IPX China Telecom Global Limited, HK
49	9829	42329	0.12%	1898	22.30	BSNL-NIB National Internet Backbone, IN
50	24173	42319	0.12%	259	163.39	NETNAM-AS-AP Netnam Company, VN
Total		19768922	56.28%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	12751.0	0.07%	2	25502	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	136225	5549.5	0.03%	2	11099	SMARTTELECOM-AS-AP Smart Telecom, PK
3	7821	4212.5	0.20%	17	71612	ZAYO-MN - Inteliquent, inc., US
4	29469	3827.0	0.02%	2	7654	GTU Khmelnitsky, Ukraine, UA
5	7954	3652.0	0.03%	3	10956	IMMENSE-NETWORKS - Immense Networks, LLC, US
6	149074	3608.3	0.03%	3	10825	UMP-AS-VN University of Medicine and Pharmacy at Ho Chi Minh City, VN
7	150203	3524.0	0.01%	1	3524	IDNIC-CHINATELECOMGLOBAL-AS-ID PT. CHINA TELECOM INDONESIA, ID
8	149068	3455.0	0.01%	1	3455	INETSOFT-AS-VN iNET software one member company limited, VN
9	131941	3429.2	0.04%	4	13717	ENTSU-NET Entsu Co.,Ltd., JP
10	213812	3429.0	0.02%	2	6858	ALFATEH, SY
11	36029	3416.0	0.01%	1	3416	AS-SEARCHGUIDE - Akamai Technologies, Inc., US
12	136167	3382.3	0.13%	13	43970	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
13	63527	3359.0	0.06%	6	20154	CTGL-AS China Telecom Global Limited, HK
14	151867	3355.5	0.02%	2	6711	DONGNAI-VN Department of Science and Technology of Dong Nai province, VN
15	138886	3191.5	0.02%	28	6383	DBN-AS-ID PT Data Buana Nusantara, ID
16	151913	3175.0	0.02%	2	6350	HAGIANG-VN Ha Giang province Department of Information and Communications, VN
17	135982	3044.0	0.02%	2	6088	HASD-AS-VN Hoi An South Development Ltd, VN
18	152992	3034.0	0.02%	2	6068	DATAONLINE-VN ONLINE DATA COMPANY LIMITED, VN
19	135939	3034.0	0.03%	4	12136	VNPTEPAY-AS-VN VNPT Electronic Payment Joint Stock Company, VN
20	135972	3034.0	0.01%	1	3034	ICTQUANGNAM-AS-VN Quang Nam Department of Information and Communications, VN
21	131363	3032.3	0.03%	3	9097	GDT-AS-VN Department of Information Technology - General Department of Taxation, VN
22	135989	3032.0	0.01%	1	3032	TAYNINH-AS-VN Tay Ninh Department of Information and Communications, VN
23	135956	3027.3	0.03%	3	9082	MOH-AS-VN The Authority of Information Technology - Ministry of Health, VN
24	140768	3025.0	0.01%	1	3025	GIALAI-VN Department of Science and Technology Gia Lai, VN
25	149160	3004.0	0.01%	1	3004	CANTHO-VN Department of Science and Technology of Can Tho City, VN
26	140758	3004.0	0.01%	1	3004	CAMAU-AS-VN Department of Science and Technology of Ca Mau province, VN
27	63752	3002.0	0.01%	1	3002	PTO-KHCN-VN Department of Science and Technology of Phu Tho province, VN
28	152933	2997.0	0.03%	4	11988	ZONECLOUD-VN ZONECLOUD TECHNOLOGY JOINT STOCK COMPANY, VN
29	149120	2995.0	0.02%	2	5990	BLUETECH-VN BLUE TECHNOLOGY AND INVESTMENT COMPANY LIMITED, VN
30	131389	2986.0	0.02%	2	5972	SEABANK-AS-VN SeABank, VN
31	150854	2983.5	0.02%	2	5967	DIGINEXT-VN Diginext Group Joint Stock Company, VN
32	151865	2978.5	0.02%	2	5957	ZENTECH-VN ZENTECH Technology Solutions Co., Ltd, VN
33	131131	2976.0	0.01%	1	2976	VNNIC-AS-VN VNNIC-AS-, VN
34	131122	2974.0	0.01%	1	2974	VNNIC-4-BYTE-AS-VN Vietnam Internet network information center VNNIC, VN
35	131405	2971.5	0.03%	4	11886	TANCANGSG-AS-VN Saigon Newport, VN
36	150861	2966.5	0.02%	2	5933	POWERNET-VN POWERNET COMPANY LIMITED, VN
37	9976	2956.6	0.09%	11	32523	ICNDP-AS-KR Namincheon Brodcasting Co., Ltd., KR
38	135955	2953.0	0.01%	1	2953	LAMDONGPORTAL-AS-VN Data integration and digital transformation center of Lam Dong province, VN
39	131342	2940.2	0.04%	5	14701	TECHCOMBANK-AS-VN Vietnam Technological and Commercial Joint-stock Bank - Techcombank, VN
40	149127	2937.0	0.01%	1	2937	BACGIANG-VN Bac Giang Department of Information and Communications, VN
41	24089	2928.0	0.01%	1	2928	VNNIC-AS-AP Vietnam Internet Network Information Center, VN
42	150864	2925.0	0.01%	1	2925	VNNS-VN VIET NAM VNNS TECHNOLOGIES JOINT STOCK COMPANY, VN
43	150838	2921.0	0.01%	1	2921	HASONTECH-VN HA SON TECHNOLOGY ONE MEMBER LIMITED COMPANY, VN
44	51897	2920.0	0.01%	1	2920	MIHAN, IR
45	23902	2916.5	0.02%	2	5833	VNNIC-AS-VN Vietnam Internet network information center VNNIC, VN
46	55317	2912.0	0.02%	3	8736	ABBANK-AS-VN 170 Hai Ba Trung, DaKao Ward, District 1, Hochiminh City, VN
47	135920	2889.6	0.04%	5	14448	EHOST-VN Ehost software company limited, VN
48	57670	2886.8	0.05%	6	17321	ASOPENWAY, UA
49	63747	2886.2	0.13%	16	46179	CPT-AS-VN Central Post and Telecommunication CPT, VN
50	131415	2882.0	0.01%
Total		168271.3	1.55%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	103.177.87.0/24	12986	0.04%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	103.177.86.0/24	12517	0.04%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	103.84.53.0/24	11085	0.03%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
4	207.167.116.0/22	10944	0.03%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
5	124.195.190.0/24	10807	0.03%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
6	130.137.231.0/24	10700	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
7	55.74.56.0/24	9056	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.74.57.0/24	9039	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	55.67.56.0/24	9011	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
10	55.27.56.0/24	9010	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.27.217.0/24	9003	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8479	0.02%	10620 -- Telmex Colombia S.A., CO
13	130.137.108.0/24	8161	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	173.82.125.0/24	8097	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	8085	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	199.47.232.0/22	7661	0.02%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
17	130.137.230.0/24	7339	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	173.82.66.0/24	7230	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	130.137.219.0/24	7168	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	130.137.80.0/24	7166	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
21	84.205.66.0/24	7058	0.02%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
22	130.137.79.0/24	6939	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
23	130.137.111.0/24	6921	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	130.137.118.0/24	6830	0.02%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
25	130.137.227.0/24	6790	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.124.0/24	6790	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	173.82.108.0/24	6784	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.47.0/24	6781	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
29	130.137.16.0/24	6672	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
30	173.82.63.0/24	6664	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	173.82.67.0/24	6632	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	103.104.136.0/24	6621	0.02%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
33	173.82.129.0/24	6609	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.150.0/24	6607	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	130.137.99.0/24	6550	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	130.137.89.0/24	6504	0.02%	14618 -- AMAZON-AES - Amazon.com, Inc., US
37	130.137.105.0/24	6455	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.141.0/24	6454	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	130.137.85.0/24	6444	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.140.0/24	6434	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.86.0/24	6429	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.147.0/24	6423	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.130.0/24	6419	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.127.0/24	6404	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.81.0/24	6400	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.136.0/24	6388	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	193.105.156.0/24	6387	0.02%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
48	130.137.133.0/24	6376	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.26.0/24	6362	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	103.141.108.0/23	6336	0.02%	138886 -- DBN-AS-ID PT Data Buana Nusantara, ID
Total		381007	1.13%

14 Day BGP Profile: 4-March-2026 00:00 - 17-March-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	70343354
Number of Prefix Updates:	35119158
Number of Prefix Withdrawals:	415745
Average Prefixes per BGP Update:	0.51
Average BGP Update Messages per second:	58.15
Average Prefix Updates per second:	29.38
Peak BGP Update Message Rate per second:	95407	(06:07:06 Tue, 17-Mar-2026)
Peak Prefix Update Rate per second:	10928	(16:11:23 Wed, 11-Mar-2026)
Peak Prefix Withdraw Rate per second:	61218	(15:39:58 Mon, 9-Mar-2026)
Prefix Count:	1081346
Updated Prefix Count:	1036983
Stable Prefix Count:	44363
Origin AS Count:	78209
Updated Origin AS Count:	76681
Stable Origin AS Count:	1528
Unique Path Count:	621450
Updated Path Count:	511076
Stable Path Count:	110374

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates

Notes

The data has been gathered using a single eBGP peering with AS 131072. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.